X-ray observations of low-power radio galaxies from the B2 catalogue
Abstract
We present an analysis of X-ray data, taken with ROSAT, for a well-defined sample of low-power radio galaxies from the Bologna B2 catalogue. Where possible, the HRI has been used in order to take advantage of the high spatial resolution provided by this instrument. A variety of models are fitted to radial profiles in order to separate the resolved and unresolved X-ray emission from the galaxies. We demonstrate a strong, approximately linear, correlation between the luminosities of the unresolved X-ray components and the 5-GHz luminosities of the radio cores in this sample. This suggests a physical relationship between the soft X-ray emission of radio galaxies and the jet-generated radio core emission. We infer a nuclear jet-related origin for at least some of the X-ray emission.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- November 1999
- DOI:
- 10.1046/j.1365-8711.1999.02923.x
- arXiv:
- arXiv:astro-ph/9907009
- Bibcode:
- 1999MNRAS.310...30C
- Keywords:
-
- GALAXIES: ACTIVE;
- GALAXIES: CLUSTERS: GENERAL;
- X-RAYS: GALAXIES;
- Astrophysics
- E-Print:
- To appear in MNRAS. 13 pages, 3 figures